Marine Weather and TidesJamaica Beach, TX

Version 3.4

What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:09AM

Sunset 7:11PM

Tuesday September 26, 2017 3:09 PM CDT (20:09 UTC)

Moonrise 11:54AM

Moonset 10:46PM

Illumination 36%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1048 Am Cdt Tue Sep 26 2017 Synopsis for high island to matagorda ship channel out 60 nm.. Light to moderate east to southeast winds along with low seas will continue through tomorrow night. Winds will become more northeasterly Thursday with the approach and eventual passage of a cold front. Caution flags might be needed behind the front on Friday.

Aviation
Vfr continues. The highest atmospheric moisture remains shunted
off to the west and south. Thus... Daytime showers should focus
along the coast and points west. Likely just isolated showers so
have left out vcsh in this package. Mainly mid to high level blow
off cirrus. Breezes will typically come from the east early in the
day... Veering more southeast through the afternoon. 31

Prev discussion issued 1002 am cdt Tue sep 26 2017
discussion...

radar is looking rather quiet this morning but daytime heating
will once again spur development later this afternoon. Satellite
derive pw fields show deeper moisture over the SW zones with
drier air to the ne. Previous forecast tapered pops higher to the
sw and lower NE and this appears to be on track. 12z soundings
support high temperatures between 88 and 92 degrees and MAX t
grids support this range, leaning toward the warmer side. Made
some minor tweaks but otherwise the previous forecast looks on
track. 43
prev discussion... Issued 634 am cdt Tue sep 26 2017
aviation...

taf sites areVFR early this morning with some high clouds streaming
across the area from the west. Could see a little bit of fog development
in the next hour or two. If high clouds don't interfere, some shra
development will be possible with daytime heating with the greatest
coverage this morning expected mainly out west and this afternoon along
any sea breeze boundary that moves inland. Quiet tonight with patchy
fog possible again inland areas. 42
prev discussion... Issued 340 am cdt Tue sep 26 2017
discussion...

largely seasonable weather for much of the week is expected, though
some indirect impacts to our area may be seen thanks to a
potentially prolonged precipitation event far to our west over
portions of south texas and northern mexico. More significant change
looks to come at the end of the week as a front backdoors through
the area, followed by an influx of drier and slightly cooler air.

However, fans of fall weather shouldn't get too excited, as the
impact of high temperatures will be pretty modest, and more summer-
like conditions look to return early next week.

Marine...

light to moderate east to southeast winds along with seas in a 1 to
3 foot range will continue through Wednesday night. Winds will
become more northeasterly beginning on Thursday with the approach
and eventual passage of a cold front. This moderate northeast flow
(some caution flags might be needed) along with building seas can be
expected at the end of the week and on into the upcoming weekend.

With an anticipated prolonged northeasterly fetch on already
slightly above normal tides, some minor coastal run up issues might
develop as early as the end of the week and possibly extending into
the start of next week. 42

Wind Forecast for Houston/Galveston, TX (16,3,4,5)

Disclaimer:The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.